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refactor: rename && fix potential bugs

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appflowy 2022-09-10 10:05:27 +08:00
parent 2d44a9a956
commit 328e0ac73a
4 changed files with 75 additions and 80 deletions
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123
shared-lib/lib-ot/src/core/document/document.rs
View File

@ -21,6 +21,10 @@ impl NodeTree {
NodeTree { arena, root }
}
pub fn get_node_data(&self, node_id: NodeId) -> Option<&NodeData> {
Some(self.arena.get(node_id)?.get())
}
///
/// # Examples
///
@ -44,7 +48,7 @@ impl NodeTree {
let mut iterate_node = self.root;
for id in path.iter() {
iterate_node = self.child_from_node_with_index(iterate_node, *id)?;
iterate_node = self.child_from_node_at_index(iterate_node, *id)?;
}
Some(iterate_node)
}
@ -54,14 +58,10 @@ impl NodeTree {
let mut current_node = node_id;
// Use .skip(1) on the ancestors iterator to skip the root node.
let mut ancestors = node_id.ancestors(&self.arena).skip(1);
let mut parent = ancestors.next();
while parent.is_some() {
let parent_node = parent.unwrap();
while let Some(parent_node) = ancestors.next() {
let counter = self.index_of_node(parent_node, current_node);
path.push(counter);
current_node = parent_node;
parent = ancestors.next();
}
Path(path)
@ -69,14 +69,11 @@ impl NodeTree {
fn index_of_node(&self, parent_node: NodeId, child_node: NodeId) -> usize {
let mut counter: usize = 0;
let mut children_iterator = parent_node.children(&self.arena);
let mut node = children_iterator.next();
while node.is_some() {
if node.unwrap() == child_node {
let mut iter = parent_node.children(&self.arena);
while let Some(node) = iter.next() {
if node == child_node {
return counter;
}
node = children_iterator.next();
counter += 1;
}
@ -86,7 +83,7 @@ impl NodeTree {
///
/// # Arguments
///
/// * `at_node`:
/// * `node_id`:
/// * `index`:
///
/// returns: Option<NodeId>
@ -105,8 +102,8 @@ impl NodeTree {
/// let inserted_data = node_tree.get_node_data(inserted_note).unwrap();
/// assert_eq!(inserted_data.node_type, node.note_type);
/// ```
pub fn child_from_node_with_index(&self, at_node: NodeId, index: usize) -> Option<NodeId> {
let children = at_node.children(&self.arena);
pub fn child_from_node_at_index(&self, node_id: NodeId, index: usize) -> Option<NodeId> {
let children = node_id.children(&self.arena);
for (counter, child) in children.enumerate() {
if counter == index {
return Some(child);
@ -120,10 +117,6 @@ impl NodeTree {
node_id.children(&self.arena)
}
pub fn get_node_data(&self, node_id: NodeId) -> Option<&NodeData> {
Some(self.arena.get(node_id)?.get())
}
///
/// # Arguments
///
@ -151,14 +144,14 @@ impl NodeTree {
pub fn apply_op(&mut self, op: &NodeOperation) -> Result<(), OTError> {
match op {
NodeOperation::Insert { path, nodes } => self.apply_insert(path, nodes),
NodeOperation::Update { path, attributes, .. } => self.apply_update(path, attributes),
NodeOperation::Delete { path, nodes } => self.apply_delete(path, nodes.len()),
NodeOperation::TextEdit { path, delta, .. } => self.apply_text_edit(path, delta),
NodeOperation::Insert { path, nodes } => self.insert_nodes(path, nodes),
NodeOperation::Update { path, attributes, .. } => self.update_node(path, attributes),
NodeOperation::Delete { path, nodes } => self.delete_node(path, nodes),
NodeOperation::TextEdit { path, delta, .. } => self.update_delta(path, delta),
}
}
fn apply_insert(&mut self, path: &Path, nodes: &[Node]) -> Result<(), OTError> {
fn insert_nodes(&mut self, path: &Path, nodes: &[Node]) -> Result<(), OTError> {
debug_assert!(!path.is_empty());
if path.is_empty() {
return Err(OTErrorCode::PathIsEmpty.into());
@ -170,22 +163,22 @@ impl NodeTree {
.node_at_path(parent_path)
.ok_or_else(|| ErrorBuilder::new(OTErrorCode::PathNotFound).build())?;
self.insert_child_at_index(parent_node, last_index, nodes)
self.insert_nodes_at_index(parent_node, last_index, nodes)
}
fn insert_child_at_index(&mut self, parent: NodeId, index: usize, insert_children: &[Node]) -> Result<(), OTError> {
fn insert_nodes_at_index(&mut self, parent: NodeId, index: usize, insert_children: &[Node]) -> Result<(), OTError> {
if index == 0 && parent.children(&self.arena).next().is_none() {
self.append_subtree(&parent, insert_children);
self.append_nodes(&parent, insert_children);
return Ok(());
}
if index == parent.children(&self.arena).count() {
self.append_subtree(&parent, insert_children);
self.append_nodes(&parent, insert_children);
return Ok(());
}
let node_to_insert = self
.child_from_node_with_index(parent, index)
.child_from_node_at_index(parent, index)
.ok_or_else(|| ErrorBuilder::new(OTErrorCode::PathNotFound).build())?;
self.insert_subtree_before(&node_to_insert, insert_children);
@ -193,12 +186,12 @@ impl NodeTree {
}
// recursive append the subtrees to the node
fn append_subtree(&mut self, parent: &NodeId, insert_children: &[Node]) {
fn append_nodes(&mut self, parent: &NodeId, insert_children: &[Node]) {
for child in insert_children {
let child_id = self.arena.new_node(child.into());
parent.append(child_id, &mut self.arena);
self.append_subtree(&child_id, &child.children);
self.append_nodes(&child_id, &child.children);
}
}
@ -207,32 +200,23 @@ impl NodeTree {
let child_id = self.arena.new_node(child.into());
before.insert_before(child_id, &mut self.arena);
self.append_subtree(&child_id, &child.children);
self.append_nodes(&child_id, &child.children);
}
}
fn apply_update(&mut self, path: &Path, attributes: &NodeAttributes) -> Result<(), OTError> {
let update_node = self
.node_at_path(path)
.ok_or_else(|| ErrorBuilder::new(OTErrorCode::PathNotFound).build())?;
let node_data = self.arena.get_mut(update_node).unwrap();
let new_node = {
let old_attributes = &node_data.get().attributes;
let new_attributes = NodeAttributes::compose(old_attributes, attributes)?;
NodeData {
attributes: new_attributes,
..node_data.get().clone()
}
};
*node_data.get_mut() = new_node;
Ok(())
fn update_node(&mut self, path: &Path, attributes: &NodeAttributes) -> Result<(), OTError> {
self.mut_node_at_path(path, |node_data| {
let new_attributes = NodeAttributes::compose(&node_data.attributes, attributes)?;
node_data.attributes = new_attributes;
Ok(())
})
}
fn apply_delete(&mut self, path: &Path, len: usize) -> Result<(), OTError> {
fn delete_node(&mut self, path: &Path, nodes: &[Node]) -> Result<(), OTError> {
let mut update_node = self
.node_at_path(path)
.ok_or_else(|| ErrorBuilder::new(OTErrorCode::PathNotFound).build())?;
for _ in 0..len {
for _ in 0..nodes.len() {
let next = update_node.following_siblings(&self.arena).next();
update_node.remove_subtree(&mut self.arena);
if let Some(next_id) = next {
@ -244,22 +228,35 @@ impl NodeTree {
Ok(())
}
fn apply_text_edit(&mut self, path: &Path, delta: &TextDelta) -> Result<(), OTError> {
let edit_node = self
fn update_delta(&mut self, path: &Path, delta: &TextDelta) -> Result<(), OTError> {
self.mut_node_at_path(path, |node_data| {
if node_data.delta.is_none() {
let msg = format!("The delta of the node at path:{:?} should not be empty", path);
tracing::error!("{}", msg);
return Err(OTError::new(OTErrorCode::UnexpectedEmpty, msg));
}
let new_delta = node_data.delta.as_ref().unwrap().compose(delta)?;
let _ = node_data.delta = Some(new_delta);
Ok(())
})?;
Ok(())
}
fn mut_node_at_path<F>(&mut self, path: &Path, f: F) -> Result<(), OTError>
where
F: Fn(&mut NodeData) -> Result<(), OTError>,
{
let node_id = self
.node_at_path(path)
.ok_or_else(|| ErrorBuilder::new(OTErrorCode::PathNotFound).build())?;
let node_data = self.arena.get_mut(edit_node).unwrap();
let new_delta = if let Some(old_delta) = &node_data.get().delta {
Some(old_delta.compose(delta)?)
} else {
None
};
if let Some(new_delta) = new_delta {
*node_data.get_mut() = NodeData {
delta: Some(new_delta),
..node_data.get().clone()
};
};
match self.arena.get_mut(node_id) {
None => tracing::warn!("The path: {:?} does not contain any nodes", path),
Some(node) => {
let node_data = node.get_mut();
let _ = f(node_data)?;
}
}
Ok(())
}
}

20
shared-lib/lib-ot/src/core/document/transaction.rs
View File

@ -1,5 +1,5 @@
use crate::core::document::position::Path;
use crate::core::{AttributeValue, Node, NodeAttributes, NodeOperation, NodeTree};
use crate::core::{Node, NodeAttributes, NodeOperation, NodeTree};
use indextree::NodeId;
pub struct Transaction {
@ -13,14 +13,14 @@ impl Transaction {
}
pub struct TransactionBuilder<'a> {
document: &'a NodeTree,
node_tree: &'a NodeTree,
operations: Vec<NodeOperation>,
}
impl<'a> TransactionBuilder<'a> {
pub fn new(document: &'a NodeTree) -> TransactionBuilder {
pub fn new(node_tree: &'a NodeTree) -> TransactionBuilder {
TransactionBuilder {
document,
node_tree,
operations: Vec::new(),
}
}
@ -82,8 +82,8 @@ impl<'a> TransactionBuilder<'a> {
pub fn update_attributes_at_path(self, path: &Path, attributes: NodeAttributes) -> Self {
let mut old_attributes = NodeAttributes::new();
let node = self.document.node_at_path(path).unwrap();
let node_data = self.document.get_node_data(node).unwrap();
let node = self.node_tree.node_at_path(path).unwrap();
let node_data = self.node_tree.get_node_data(node).unwrap();
for key in attributes.keys() {
let old_attrs = &node_data.attributes;
@ -104,11 +104,11 @@ impl<'a> TransactionBuilder<'a> {
}
pub fn delete_nodes_at_path(mut self, path: &Path, length: usize) -> Self {
let mut node = self.document.node_at_path(path).unwrap();
let mut node = self.node_tree.node_at_path(path).unwrap();
let mut deleted_nodes = vec![];
for _ in 0..length {
deleted_nodes.push(self.get_deleted_nodes(node));
node = self.document.following_siblings(node).next().unwrap();
node = self.node_tree.following_siblings(node).next().unwrap();
}
self.operations.push(NodeOperation::Delete {
@ -119,10 +119,10 @@ impl<'a> TransactionBuilder<'a> {
}
fn get_deleted_nodes(&self, node_id: NodeId) -> Node {
let node_data = self.document.get_node_data(node_id).unwrap();
let node_data = self.node_tree.get_node_data(node_id).unwrap();
let mut children = vec![];
self.document.children_from_node(node_id).for_each(|child_id| {
self.node_tree.children_from_node(node_id).for_each(|child_id| {
children.push(self.get_deleted_nodes(child_id));
});

10
shared-lib/lib-ot/src/errors.rs
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@ -25,11 +25,8 @@ impl std::convert::From<OTErrorCode> for OTError {
}
impl OTError {
pub fn new(code: OTErrorCode, msg: &str) -> OTError {
Self {
code,
msg: msg.to_owned(),
}
pub fn new(code: OTErrorCode, msg: String) -> OTError {
Self { code, msg }
}
pub fn context<T: Debug>(mut self, error: T) -> Self {
@ -76,6 +73,7 @@ pub enum OTErrorCode {
Internal,
PathNotFound,
PathIsEmpty,
UnexpectedEmpty,
}
pub struct ErrorBuilder {
@ -105,6 +103,6 @@ impl ErrorBuilder {
}
pub fn build(mut self) -> OTError {
OTError::new(self.code, &self.msg.take().unwrap_or_else(|| "".to_owned()))
OTError::new(self.code, self.msg.take().unwrap_or_else(|| "".to_owned()))
}
}

2
shared-lib/lib-ot/tests/node/script.rs
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@ -1,4 +1,4 @@
use lib_ot::core::{Node, NodeAttributes, NodeTree, Path, TransactionBuilder};
use lib_ot::core::{Node, NodeAttributes, NodeTree, Path, TextDelta, TransactionBuilder};
pub enum NodeScript {
InsertNode { path: Path, node: Node },